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I see the following: Although there is no long lead rhythm strip — we can see that the rhythm is AFib with a controlled ventricular response ( ie, irregularly irregular rhythm without P waves — and with a heart rate between ~70-110/minute ). Regarding Intervals: There is no PR interval ( since the rhythm is AFib ).
However, according to these diagnostic criteria (JACC 2011; 57(7):802), it is a Bazett corrected QT of less than 330-370, depending on other diagnostic criteria, including 1) h/o cardiac arrest, 2) sudden syncope, 3) family hx of sudden unexplained arrest at age less than 40, 4) family hx of SQTS. short QT syndrome , SQTS).
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